MILAN, July 25 (Reuters) - Telecom Italia’s main shareholder Vivendi is very concerned about the situation at the Italian phone group since activist fund Elliott seized board control and is weighing its options, a spokesman for the French media giant said.

“Elliott promised all kinds of things but now they seem to have disappeared... It’s a big mess,” the spokesman told Reuters on Wednesday.

Elliott wrestled TIM board control from Vivendi in May after a two-month campaign to shake up the way the French group has been running the former telecoms monopoly.